In this globalization era, work relationship between employer and employee is becoming more complex such that the government takes part in the industrial relation. The enforcement of industrial relation is done by some tools, one of them is company regulation which is made by the employer. However, it should not contradicts with the applied legislation. This research is analyzing about industrial court’s competency on cancellation of company regulation when a clause contradicts with the applied legislation, using case approach on case number 194/Pdt.Sus/PHI/2015/PN.Mdn juncto number 599/K/Pdt.Sus-PHI/2016. This research uses a normative law research and analytical desciptive type with statute approach and case approach. Furthermore, the collected data will be analyzed qualitatively. Result shows that the industrial court has the competency to state a cancellation of company regulation only if a claim was previously made. Without a claim on it, a company regulation that contradicts with the applied legislation will be null and void and instantly refers to the applied legislation.